189005612 has 12 divisors (see below), whose sum is σ = 337797600. Its totient is φ = 92492016.

The previous prime is 189005599. The next prime is 189005617. The reversal of 189005612 is 216500981.

It is not an unprimeable number, because it can be changed into a prime (189005617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502487 + ... + 502862.

It is an arithmetic number, because the mean of its divisors is an integer number (28149800).

Almost surely, 2^189005612 is an apocalyptic number.

It is an amenable number.

189005612 is a deficient number, since it is larger than the sum of its proper divisors (148791988).

189005612 is a wasteful number, since it uses less digits than its factorization.

189005612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005400 (or 1005398 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 189005612 is about 13747.9311898191. The cubic root of 189005612 is about 573.8850348653.

The spelling of 189005612 in words is "one hundred eighty-nine million, five thousand, six hundred twelve".